From f78a15dcaf63a5ad478670fd1d52d85261e88f37 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 26 Oct 2020 10:35:43 +0000 Subject: [PATCH] ARM: dts: Expand PCIe space on BCM2711 Attempts to connect external GPUs to Compute Module 4's PCIe bus have highlighted that the existing "outbound window" - the fraction of the PCI address base that is appears in the host's memory map - is restrictively small. Expand the window to a full 1GB. See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=288902 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/bcm2711.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/arm/boot/dts/bcm2711.dtsi +++ b/arch/arm/boot/dts/bcm2711.dtsi @@ -503,8 +503,8 @@ msi-controller; msi-parent = <&pcie0>; - ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000 - 0x0 0x04000000>; + ranges = <0x02000000 0x0 0xc0000000 0x6 0x00000000 + 0x0 0x40000000>; /* * The wrapper around the PCIe block has a bug * preventing it from accessing beyond the first 3GB of